.main {
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
    background-color: aquamarine;
}
.login {
    width: 400px;
    min-width: 300px;
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    z-index: 99;
    .header {
        font-size: 32px;
        font-weight: bold;
        text-align: center;
    }
    .form_box {
        margin-top: 140px;
        position: relative;
        .logo {
            width: 140px;
            height: 140px;
            border-radius: 100%;
            -webkit-border-radius: 100%;
            -moz-border-radius: 100%;
            -ms-border-radius: 100%;
            -o-border-radius: 100%;
            overflow: hidden;
            position: absolute;
            top: -45%;
            left: 50%;
            transform: translate(-50%, 0);
            -webkit-transform: translate(-50%, 0);
            -moz-transform: translate(-50%, 0);
            -ms-transform: translate(-50%, 0);
            -o-transform: translate(-50%, 0);
            .img {
                border-radius: 100%;
                -webkit-border-radius: 100%;
                -moz-border-radius: 100%;
                -ms-border-radius: 100%;
                -o-border-radius: 100%;
                overflow: hidden;
            }
        }
        .form {
            width: 100%;
            padding-top: 40px;
            box-sizing: border-box;
            .footerbtn {
                width: 100%;
                display: flex;
                justify-content: flex-end;
            }
        }
    }
}
